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Home >> Buick >> 1992 >> Roadmaster Limited >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Panel - Analog >> Testing >> Oil Life Module Isolation (Park Avenue) >> Code 13, Powertrain Control Module Communications
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Code 13, Powertrain Control Module Communications

Check 800 wire for an open between Oil Life Module and PCM, See appropriate chassis wiring diagram in the WIRING DIAGRAMS Section. If code 11 or 12 is set, see that code first.

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